𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Extremal Properties of the First Eigenvalueof Schrödinger-Type Operators

✍ Scribed by Lino Notarantonio


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
212 KB
Volume
156
Category
Article
ISSN
0022-1236

No coin nor oath required. For personal study only.

✦ Synopsis


Given a separable, locally compact Hausdorff space X and a positive Radon measure m(dx) on it, we study the problem of finding the potential V(x) 0 that maximizes the first eigenvalue of the Schro dinger-type operator L+V(x); L is the generator of a local Dirichlet form (a, D[a]) on L 2 (X, m(dx)).

1998 Academic Press

(1) the supremum sup[* 1 (V): V # B A ] is finite;

(2) there exists V # B A such that sup[* 1 (V ): V # B A ]=* 1 (V ).


📜 SIMILAR VOLUMES


Regularization of the non-stationary Sch
✍ Paula Cerejeiras; Nelson Vieira 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 179 KB

## Abstract In this paper we prove a __L__~__p__~‐decomposition where one of the components is the kernel of a first‐order differential operator that factorizes the non‐stationary Schrödinger operator −Δ−__i__∂~__t__~. Copyright © 2008 John Wiley & Sons, Ltd.

Lp-Uniqueness of Schrödinger Operators a
✍ Liming Wu 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 237 KB

We prove several L p -uniqueness results for Schro dinger operators &L+V by means of the Feynman Kac formula. Using the (m, p)-capacity theory for general Markov semigroups, we show that the associated Feynman Kac semigroup is positive improving in the sense of (m, p)-capacity, improving the well kn

Gradient Estimates and a Liouville Type
✍ E.R. Negrin 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 164 KB

In this paper, we derive a Liouville type theorem on a complete Riemannian manifold without boundary and with nonnegative Ricci curvature for the equation \(\Delta u(x)+h(x) u(x)=0\), where the conditions \(\lim _{r \rightarrow x} r^{-1} \cdot \sup _{x \in B_{p}(r)}|\nabla h(x)|=0\) and \(h \geqslan

Asymptotic behavior of eigenvalues of Sc
✍ Christian Hainzl; Robert Seiringer 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 159 KB

## Abstract We study the eigenvalues of Schrödinger type operators __T__ + __λV__ and their asymptotic behavior in the small coupling limit __λ__ → 0, in the case where the symbol of the kinetic energy, __T__ (__p__), strongly degenerates on a non‐trivial manifold of codimension one (© 2010 WILEY‐V

Smoothness of Schrödinger Operator Poten
✍ Plamen Djakov; Boris Mityagin 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 281 KB

Consider the Schro¨dinger equation Ày 00 þ V ðxÞy ¼ ly with a periodic real-valued L 2 -potential V of period 1; VðxÞ ¼ P 1 m¼À1 vðmÞ expð2pimxÞ: Let fl À n ; l þ n g be its zones of instability, i.e. fl À n ; l þ n g are pairs of periodic and antiperiodic eigenvalues, and b 2 ð0; 1Þ determines Gevr